Question

S —> SO2 —> SO3 —> H2SO4 —> ZnSO4 —> Zn —> ZnO —> Zn(NO3)2 —> Zn(OH)2 —> ZnO —> Zn

Answer 1

S + O2 = SO2
SO2 + O3 = SO3 + O2
SO3 + H2O = H2SO4
H2SO4 + Zn = ZnSO4 + H2↑
2ZnSO4 + 2H2O = 2Zn↓ + O2↑ + 2H2SO4
Zn + H2O = ZnO + H2
ZnO + 2HNO3 = Zn(NO3)2 + H2O
Zn(NO3)2 + 2NaOH = Zn(OH)2↓ + 2NaNO3
Zn(OH)2 = ZnO + H2O
ZnO + C = Zn + CO

Answer 2

Chemical Reactions in the Given Sequence

The given sequence represents a series of chemical reactions. Let's break down each step:

1. S -> SO2: - This reaction represents the conversion of sulfur (S) to sulfur dioxide (SO2). - The balanced equation for this reaction is: S + O2 -> SO2.

2. SO2 -> SO3: - This reaction represents the conversion of sulfur dioxide (SO2) to sulfur trioxide (SO3). - The balanced equation for this reaction is: 2SO2 + O2 -> 2SO3.

3. SO3 -> H2SO4: - This reaction represents the conversion of sulfur trioxide (SO3) to sulfuric acid (H2SO4). - The balanced equation for this reaction is: SO3 + H2O -> H2SO4.

4. H2SO4 -> ZnSO4: - This reaction represents the reaction between sulfuric acid (H2SO4) and zinc (Zn) to form zinc sulfate (ZnSO4). - The balanced equation for this reaction is: Zn + H2SO4 -> ZnSO4 + H2.

5. ZnSO4 -> Zn: - This reaction represents the decomposition of zinc sulfate (ZnSO4) to form zinc (Zn). - The balanced equation for this reaction is: ZnSO4 -> Zn + SO2 + O2.

6. Zn -> ZnO: - This reaction represents the oxidation of zinc (Zn) to form zinc oxide (ZnO). - The balanced equation for this reaction is: 2Zn + O2 -> 2ZnO.

7. ZnO -> Zn(NO3)2: - This reaction represents the reaction between zinc oxide (ZnO) and nitric acid (HNO3) to form zinc nitrate (Zn(NO3)2). - The balanced equation for this reaction is: ZnO + 2HNO3 -> Zn(NO3)2 + H2O.

8. Zn(NO3)2 -> Zn(OH)2: - This reaction represents the reaction between zinc nitrate (Zn(NO3)2) and sodium hydroxide (NaOH) to form zinc hydroxide (Zn(OH)2). - The balanced equation for this reaction is: Zn(NO3)2 + 2NaOH -> Zn(OH)2 + 2NaNO3.

9. Zn(OH)2 -> ZnO: - This reaction represents the dehydration of zinc hydroxide (Zn(OH)2) to form zinc oxide (ZnO). - The balanced equation for this reaction is: Zn(OH)2 -> ZnO + H2O.

10. ZnO -> Zn: - This reaction represents the reduction of zinc oxide (ZnO) to form zinc (Zn). - The balanced equation for this reaction is: ZnO + C -> Zn + CO.

11. Zn -> ZnO: - This reaction represents the oxidation of zinc (Zn) to form zinc oxide (ZnO). - The balanced equation for this reaction is: 2Zn + O2 -> 2ZnO.

12. ZnO -> Zn(NO3)2: - This reaction represents the reaction between zinc oxide (ZnO) and nitric acid (HNO3) to form zinc nitrate (Zn(NO3)2). - The balanced equation for this reaction is: ZnO + 2HNO3 -> Zn(NO3)2 + H2O.

13. Zn(NO3)2 -> Zn(OH)2: - This reaction represents the reaction between zinc nitrate (Zn(NO3)2) and sodium hydroxide (NaOH) to form zinc hydroxide (Zn(OH)2). - The balanced equation for this reaction is: Zn(NO3)2 + 2NaOH -> Zn(OH)2 + 2NaNO3.

14. Zn(OH)2 -> ZnO: - This reaction represents the dehydration of zinc hydroxide (Zn(OH)2) to form zinc oxide (ZnO). - The balanced equation for this reaction is: Zn(OH)2 -> ZnO + H2O.

15. ZnO -> Zn: - This reaction represents the reduction of zinc oxide (ZnO) to form zinc (Zn). - The balanced equation for this reaction is: ZnO + C -> Zn + CO.

Please note that the given sequence of reactions is not complete, and there may be additional reactions or steps involved in the overall process.